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Heat-tracing Thermocouples are made for use in systems that measure the surface temperature of process pipe that is carrying products whose temperatures must be controlled to prevent freeze-up, or to maintain a viscosity level so that the inner medium will flow. These sensors are constructed with Thermocouple sensing elements inside 316SS sheaths, and with a 3/4" Radius stainless steel mounting pad. Cold legs are available in customer-specified lengths to accommodate pipe insulation thickness.
Unit of Measure

Specifications

Brands

N/A Pyromation®

Configuration Code

N/A SP03

100 Ohms Platinum Resistance Temperature Detector (RTD) Elements (α = 0.003 85 ºC-1)

N/A Code R1T185L - Single
Tolerance - Grade B
Temperature Range: -200 to 200 ºC

Code R5T185L - Single
Tolerance - (1/5) Class B
Temperature Range: -30 to 150 ºC

Code RBF185L - Single
Tolerance - Class B
Temperature Range: -50 to 200 ºC

Code RAF185L - Single
Tolerance - Class A
Temperature Range: -30 to 200 ºC

Code RBF185M - Single
Tolerance - Class B
Temperature Range: -50 to 482 ºC

Code R1T185H - Single
Tolerance - Grade B
Temperature Range: -200 to 600 ºC

Code RAT185H - Single
Tolerance - Class A
Temperature Range: -100 to 450 ºC

Code R1T285L - Duplex
Tolerance - Grade B
Temperature Range: -200 to 200 ºC

Code R5T285L - Duplex
Tolerance - (1/5) Class B
Temperature Range: -30 to 150 ºC

Code RBF285L - Duplex
Tolerance - Class B
Temperature Range: -50 to 200 ºC

Code RAF285L - Duplex
Tolerance - Class A
Temperature Range: -30 to 200 ºC

Code RBF185M - Duplex
Tolerance - Class B
Temperature Range: -50 to 482 ºC

Code R1T285H - Duplex
Tolerance - Grade B
Temperature Range: -200 to 600 ºC

Code RAT285H - Duplex
Tolerance - Class A
Temperature Range: -100 to 450 ºC

Sheath Diameter (316 Stainless Steel)

N/A Code 48 - 1/4 in.
Code 68 - 3/8 in.

Element Connection

N/A Code 2 - 2-Wire Element
Code 3 - 3-Wire Element
Code 4 - 4-Wire Element (Not available with 440 Series Transmitter)
Sheath Length1 N/A Code 0304
Hot Leg - 3 in.
Cold Leg - 4 in.

Code 0306
Hot Leg - 3 in.
Cold Leg - 6 in.

Code 0308
Hot Leg - 3 in.
Cold Leg - 8 in.

Mounting Pad Material

N/A 304 Stainless Steel

Mounting Pad Width

N/A 1 in

Mounting Pad Length

N/A 2 in

Mounting Pad Thickness

N/A 18 gauge

Radius of Mounting Pad

N/A Code 18RD
Radius - 3/4 in.
NPT Pipe Size - 1-1/2 in.

Note for Mounting Pads

N/A Mounting pad is flexible enough to be formed around pipe sizes from 1" to 12" NPS pipe.

Standard Head Terminations

N/A Code 31 - Aluminum Screw-Cover Head
Code 34 - Cast Iron Screw-Cover Head
Code 35T-642A - (4 to 20) mA HART® Field Transmitter with Aluminum General-Purpose Housing
Code 36T82-D10 - (4 to 20) mA Dual Input HART® Transmitter with Digital Display and General-Purpose Aluminum Housing with Glass Lid
Code 37T-662A - (4 to 20) mA HART® Field Transmitter with General-Purpose Aluminum Housing
Code 49 - Flip-Top Aluminum Head
Code 63 - White Polypropylene Screw-Cover Head
Code 91 - 316L Stainless Steel Screw-Cover Head
Code 93 - Aluminum Explosion-Proof/Flame-Proof Head, NEX, IEC, ATEX Approved
Code 94 - 316L Stainless Steel Explosion-Proof/Flameproof Head, NEC, IEC, ATEX Approved

Standard Head Options

N/A Code CG - Nylon Cord Grip
Code GS - Ground Screw
Code I - Stainless Steel Tag
Code NB - 1/2 in. NPT Nylon Conduit Reducer Bushing
Code SB - 1/2 in. NPT Conduit Reducer Bushing
Code T-440 - 4 to 20 mA Head-mounted RTD Transmitter
Code T-441 - 4 to 20 mA Isolated Head-mounted Transmitter
Code T-442 - 4 to 20 mA HART® Isolated Head-mounted Transmitter
Code T82-00 - 4 to 20 mA Dual Input HART® Head-mounted Transmitter

Note

Note

N/A HART® is a registered trademark of HART® Communication Foundation.
  • 1 Consult factory for other hot leg lengths or cold leg lengths.